Vulcanizing-press



R. H. CRUMLICH.

VULCANlZlNG PRESS.

APPLICATloN FILED JAN.24. 1921.

Patented Aug. 9, 1921.

Inverzwt i UNITED STATES PATENT OFFICE.

1,3se,eoe.

Speoication of Letters Patent.

Patented ang. 9, 1921.

application inea January 24, 1921. serial No. 439,503.

To all 'whom t may concern:

Be it known that I, ROBERT H. CRUMLICH, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Vulcanizing-Presses, .of which the following is a specification.

In the use of vulcanizing resses it is common in vulcanizing certain c asses of tires to use a core which is inflated. In such devices ordinarily there is a vulcanizing chamber of considerable length and a rain adapted to traverse the chamber. A main air pipe is carried by the ram and this heretofore has been connected with a flexible hose or other means with some portion of the side of the chamber. This has given some trouble from breakage and other accidents as it will be understood that when there is a leak in this air pipe all the tires in the vulcanizing chamber are defectively formed.

In the present invention 4the air pipe is carried through the removable cover and thus permits of the use of several fittings in co-nnecting the air. The .invention also involves a desirable fitting for the branch pipes.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a central section through` the vulcanizing chamber with my device in place. j

Fig. 2 an enlarged view of the slip joint in the cover.

Fig. 3 an `enlarged view of one of the branch connections.

Fig. 4 a guiding plug for the air connection.

1 'marks the vulcanizing chamber, 2 the rain usually employed in such chamber, 3 a

' plunger carrying the rain, 4 a hydraulic cylinder in which the plunger operates, 5 a tie rod between the vulcanizing chamber and the hydraulic cylinder, 6 a removable cover for closing the vulcanizin chamber, 7 molds in place on the ram an clamped between the ram and the cover, 8 a main air pipe for supplying air to the molds, this air pipe being carried by the ram 2, and 9 branch pipes leading from the main air pipe connected to the stems l0. of the cores 11. The branch pipes are formed of flexible metal tubing, such as thin copper tubing and it is very desirable that the ends of this tubing be so connected with the fittings as to revent breakage of the tubing or leakage. his is accomplished in the joint herein shown wherein a fitting 12 is connected with the branch pipe and a fitting 13 is connected with an a1r valve leading to the core. A follower 14 is arranged over the pipe. The end of the pipe is flared'at 15, the flared, portion being arranged between the conical end 16 of the fitting 13 and the follower 14. A nut 17 1s screwed over the follower clamping theiiared end between the follower and the fitting The follower preferably has a projection 18 following out on the pipe s0 as to support the pipe a short distance over.

the actual joint.

It will be understood that in loading the vulcamzing chamber the cover is removed, the ram brought to approximately the up` per art of the chamber and lowered as the mol s are added to the pile.

A connection 19 is joined with the pipe 8 b a union 20. This connection 19 extends t rough a sli joint, one portion 21 of the joint being ormed in or secured in the cover. A cap 22 is arranged on the part 21 and a packing joint is formed by a cap 23 operating on a packing 24. The part 21 has a tapered opening 21al so as to guide the connection 19 through the slip joint as the cover is lowered to place after the vulcanizing chamber has been filled with molds. A quick detachable union is provided for the i upper end of the slip joint. A supply pipe 25 ends with a shoulder 26 and a follower 27 extends over the shoulder 26 and is screwed on to the end of the connection 19. The fql lower is rovided with handles 27 a by means of which the follower may' be quickly screwed into place or detached.

In order to avoid the injuring of the threads lon the connection 19 the cap 28 is dropped into the connection prior to the lowering of the cover into lace. The cap protects the threads in gui g the connection into and through the slip joint. With this construction it will readily be seen secure fittings may be used in completin the connection to the cores of the mo ds an the branch pipes are securely joined with the fittings to which they are connected.

What I claim as new is 1. In a vulcanizin press, the combination of a vulcanizng c amber; a ram in the chamber; a removable cover on the chamber; a core supplying air pipe carried with the ram; and a suppl connection for said pipe extending throug the cover comprising a slip joint.

2. In a vulcanizing press, the combination of a vulcanizing chamber; a ram in the chamber; a removable-cover on the chamber; a core supplying air pipe carried with the ram; a supply connection for said pipe extending through the cover; a supply pipe and a detachable means for uniting said supply pipe and said connection -outside the cover.

3. In a vulcanizing press, the combination of a vulcanizing chamber; a ram in the chamber; a removable cover on the chamber; a core supplying air pipe carried with the ram; a supply connection for said pipe eX- tending through the cover; and a detachable union on said connection outside the cover, said union being so arranged that when detached from the connection it will leave the surface of the connection` unobstructed whereby it may be passed through the cover.

4. In a vulcanizing press, the combination of a vulcanizing chamber; a ram in the chamber; a removable cover` on the chamber; a mold supplying pipe carried with the ram; a supply connection for sald plpe extending through the cover, said cover havlng a gulde opening for receiving said connection; and a removable cap arranged on said connection and guiding the connection ythrough said uide opening.

5. In a vulcanizln press, thecombination of 'a vulcanizing c amber; a ram in the chamber; a main supply pipe carried with the ram; branch pipes leading from the main pipe and adapted to connect with cores of molds on the ram, each branch pipe having a connection formed of a tting; a follower operating in connection with the tting; a flared end at the end of the branch pipe arranged between theJ fitting and the follower; and a clamping nut clamping the folower and fitting together on the flared en 6. In a vulcanizing press, the combination of a vulcanizing chamber; a ram in the chamber; a main supply pipe carried with the ram; branch pipes leading from the main pipe and adapted to'connect with cores of molds on the ram, each branch pipe having a connection formed of a fitting; a follower operating in connection with the fitting; a flared end at the end of the branchv plpe arranged between the tting and the follower; and a clamping nut clamping the follower and fitting together on the flared end, the follower having an extension reinforcing the tubing adjacent to its end.

In testimony whereof I have hereunto set my hand.

ROBERT H. CRUMLICH. 

